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Test Bank (Download Now) For Human Biology 16th Edition by Mader ISBN: 9781260233032

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Human Biology, 16e (Mader)
Chapter 2 Chemistry of Life
1) The smallest unit of an element that still retains the chemical and physical properties of that
element is called a(n)
A) isotope.
B) nucleus.
C) atom.
D) molecular bond.
E) neutrino.
Answer: C
Explanation: An atom is the smallest unit of an element that still retains the chemical and
physical properties of that element.
Section: 02.01
Topic: Atomic Structure
Bloom’s: 1. Remember
Learning Outcome: 02.01.01 Distinguish between atoms and elements.
Accessibility: Keyboard Navigation
2) In an atom, the number of protons always equals the number of
A) electrons.
B) neutrons.
C) neutrons and protons.
D) quarks.
E) neutrinos.
Answer: A
Explanation: In an atom, the number of protons always equals the number of electrons.
Section: 02.01
Topic: Atomic Structure
Bloom’s: 1. Remember
Learning Outcome: 02.01.02 Describe the structure of an atom.
Accessibility: Keyboard Navigation

HUMAN BIOLOGY 16TH EDITION MADER TEST BANK

2
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No reproduction or distribution without the prior written onsent of McGraw-Hill Education.
3) How many elements occur naturally?
A) 112
B) 92
C) 64
D) 32
E) 6
Answer: B
Explanation: There are 92 naturally occurring elements.
Section: 02.01
Topic: Atomic Structure
Bloom’s: 1. Remember
Learning Outcome: 02.01.01 Distinguish between atoms and elements.
Accessibility: Keyboard Navigation
4) The atomic number of an atom is determined by the number of
A) protons.
B) neutrons.
C) electrons.
D) protons and neutrons.
E) protons and electrons.
Answer: A
Explanation: The atomic number of an atom is determined by the number of protons.
Section: 02.01
Topic: Atomic Structure
Bloom’s: 1. Remember
Learning Outcome: 02.01.02 Describe the structure of an atom.
Accessibility: Keyboard Navigation
5) An element cannot be broken down by chemical means.
Answer: TRUE
Explanation: An element is one of the basic building blocks of matter and cannot be broken
down by chemical means.
Section: 02.01
Topic: Atomic Structure
Bloom’s: 1. Remember
Learning Outcome: 02.01.01 Distinguish between atoms and elements.
Accessibility: Keyboard Navigation